Turkey: Provincial flags

Diyarbakir province

I have seen the flag of the Diyarbakir province on Czech TV
(interview of the province governor).
The flag is white with coat of arms in its center (very short spot -
probably a white shield margined in black, with red-blue "castle" or
"town" [?]) and with golden (? brown???) inscription DIYARBAKIR XXXXX
(= obviously "Diyarbakir Province" in Turkish) below the shield. It
seems probable that all Turkish provinces use the same kind of flags
- but are they all white, or do they have different field colors?